I think it's just funny how obvious it is if you think about it, since the time it takes to travel a light year is right there in the name. If they had made up a distance using any other unit (kilometers, AUs) it would've been much less obvious.Considering they also have an absurd amount of meteors on their planet I'd wager this story's way of world-building the universe is going in a "The Little Prince" path of childish interpretation. Which I am all for. At the very least it's evident to me that it's not lazy, or poorly made, but deliberate in it.